Preparation and Water Retention Properties of Clay-based Sand-fixing and Grass-planting Materials  

作　　者：张增志 WANG Botao 

机构地区：[1]School of Mechanical Electronic and Information Engineering, Research Institute of Ecological and Functional Materials,China University of Mining and Technology (Beijing)

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2013年第2期325-328,共4页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Natural Science Foundation of China(No.50772131);the Main Project of Ministry of Education of China(No.106086);the Fundamental Research Funds for the Central Universities of China University of Mining and Technology(Beijing)(No.2010YJ05)

摘　　要：Targeting the problem of available water conservation in sand fixation, the sand-fixing and grass-planting materials were prepared with clay modified by emulsifying vegetable waxes and octylphenol polyoxyethylene ether （OP4）. The water retention property was studied in simulating desertification environmental climate and the materials were characterized by means of UV-Vis, SEM, FTIR, XRD and TGA measurements. The experimental result showed that the materials had excellent water retention properties, due to that vegetable waxes adhered evenly to clay particle surfaces, made the clay pores changing from hydrophilic to hydrophobic and so inhibited the water evaporation. Grass-planting experiment showed that, with reasonable mass ratio of clay, vegetable waxes and surfactant, the materials not only inhibited water evaporation but also maintained sound air permeability so shat the germination rate and survival rate of grass were significantly improved.Targeting the problem of available water conservation in sand fixation, the sand-fixing and grass-planting materials were prepared with clay modified by emulsifying vegetable waxes and octylphenol polyoxyethylene ether （OP4）. The water retention property was studied in simulating desertification environmental climate and the materials were characterized by means of UV-Vis, SEM, FTIR, XRD and TGA measurements. The experimental result showed that the materials had excellent water retention properties, due to that vegetable waxes adhered evenly to clay particle surfaces, made the clay pores changing from hydrophilic to hydrophobic and so inhibited the water evaporation. Grass-planting experiment showed that, with reasonable mass ratio of clay, vegetable waxes and surfactant, the materials not only inhibited water evaporation but also maintained sound air permeability so shat the germination rate and survival rate of grass were significantly improved.

关 键 词：octylphenol polyoxyethylene ether （OP4） vegetable waxes sand-fixing and grass-planting water retention 

分 类 号：S288[农业科学—农业水土工程]